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Firmware FW96672A impossible decompress! Any help

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  • Firmware FW96672A impossible decompress! Any help

    Can someone please help
    I'm not able to decompress the new sj4000 firmware FW96672A
    I've tried it with ntktool.jar but it gives the error:
    Error: Invalid magic constant

    Link to firmware:

    http://support.sjcam.com/support/sol...re-version-2-0

    Thanks for help

  • #2
    https://u.pcloud.link/publink/show?c...JyYYaev4NK4nW7
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    • #3
      Thank you nutsey! But what do i do with this .zip/unp file?

      I need decompress firmeware to change the logo with NLogo
      Last edited by CleberNV; 07-04-2021, 11:52 PM.

      Comment


      • #4
        Open that 02.unp unpacked file with NLogo and it will reveal these logos:
        Click image for larger version

Name:	Logo.jpg
Views:	164
Size:	13.2 KB
ID:	20036
        Click image for larger version

Name:	Logo2.jpg
Views:	109
Size:	17.0 KB
ID:	20037
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        • #5
          CleberNV By the way do you know where to buy this 96672-based SJ4000 online?
          Donate here if you want to support my efforts and this site.

          Email me if you have any offers, requests or ideas.

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          • #6
            Originally posted by nutsey View Post
            CleberNV By the way do you know where to buy this 96672-based SJ4000 online?
            I buy 3pcs here: https://pt.aliexpress.com/item/19113...2742b90a1IdcEY

            Aliexpress on oficial sjcam store.

            Comment


            • #7
              Originally posted by nutsey View Post
              Open that 02.unp unpacked file with NLogo and it will reveal these logos
              I made the modification with NLogo, now I'm going to repack the firmware back

              Ok i repack fw but I can't flash the cam
              the repack fw got more 2k size file bigger than the original fw bin

              repack fw: 4.239kb
              original fw: 2.650kb

              I used for repack the bfc4ntk and ntktool
              Last edited by CleberNV; 07-06-2021, 02:04 AM.

              Comment


              • nutsey
                nutsey commented
                Editing a comment
                Newer Novatek chips use more efficient lzma compression which is not supported by the current version of the bfc4ntk tool.

              • CleberNV
                CleberNV commented
                Editing a comment
                @nutsay
                have any way to recompression with another tool? or don't have a tool for it yet?

            • #8
              @nutsay

              do you know someone who can do this service? i need charge the logo, repack modified fw to flash in my cam

              I pay for its if you need.

              thanks!

              Comment


              • nutsey
                nutsey commented
                Editing a comment
                I replied to the email you used for registering here.

            • #9
              CleberNV Is there an option to activate H.265/HEVC video encoding?
              Donate here if you want to support my efforts and this site.

              Email me if you have any offers, requests or ideas.

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              • nunos
                nunos commented
                Editing a comment
                Hi nutsey
                you can send tool unpack repack lzma to me email [ i have camera model ship 96672 96675 ntktool not support ].

                thank you very much
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